Chord sequence

Bbm7b5, A7#11

B♭m7♭5 A7♯11

Tempo 120 BPM

Rootless Shells Guide tones Rooted shells Rooted Drop 2

Four-note rootless voicings in their two forms, with the 3rd or the 7th on the bottom, played over the root.

Customize each chord

Bbm7b5
A7#11

Analysis

Heard in B major

Each chord's roman numeral and role in B major
Chord	Numeral	Role
B♭m7♭5	♭iø7	Diatonic
A7♯11	♭VII7♯11	Borrowed from B minor

Scales to play